Snake Sisters

Three siblings are unique hatchlings of a group of snake eggs, who instead of being the typical slithering creatures turn out to be in human form. One morning, they discover blood in their vaginas; their father eases their shock by informing them of the normalcy of the situation, that the blood represents a phase in their lives. He warns them, however, that accompanying their adulthood are carnal temptations which would lead to sin which would cause them to turn into snakes.